References :
1. Macauliffe, Max Arthur, The Sikh Religion. Oxford, 1909
2. Harbans Singh, Guru Nanak and Origins of the. Sikh Failfi. Bombay, 1968
3. McLeod, W.1L, 1.1-., The B40 Jnnnm-Snkhi. Amrilsar, 1980
4. Koiili, Surindar Singh, ed., jnmiiii Sdkhl B/idi Bald. Chindigai-h, 1975
5. Vir Singh, Bhai, ed., PurdlanJanam Sdkli`i. Ainrilsar, 1982